Category: Science

Sharks Without Borders: A Binational Effort to Study and Conserve Threatened Shark Species

8232Sharks have been around, essentially unchanged, for 400 million years. Their size, power, and massive jaws fill us with terror and fascination. And even though sharks kill fewer people than dogs each year, media coverage and movies of shark attacks have portrayed them as insatiable killing machines.

They may rule the ocean, but sharks are vulnerable. They grow slowly, produce few young, and are exceptionally susceptible to overfishing. Sharks are being depleted faster than they can reproduce. This threatens the stability of marine ecosystems around the world. A healthy and abundant ocean depends on predators like sharks keeping ecosystems balanced.

Sharks migrating between California and Baja California, Mexico, are threatened by commercial fishing activity in both countries. Join Scripps shark expert Dan Cartamil as he explores the ecology and behaviors of these fascinating animals, and discusses the issues relevant to the sustainability of our local shark populations.

Watch Sharks Without Borders: A Binational Effort to Study and Conserve Threatened Shark Species.

Browse more programs in the Perspectives on Ocean Science series, taped at Birch Aquarium at Scripps since 2001.

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On Our Mind – Alzheimer’s Disease

Alzheimer's Disease - On Our Mind An estimated 5 million Americans have Alzheimer’s disease and that number will continue to rise. The impact will be felt not just in the homes of the diagnosed but by their caregivers, their loved ones, their communities, and beyond.

The Brain Channel’s flagship series On Our Mind is endeavoring in the next few months to take a closer look at Alzheimer’s disease. Join Dr. William Mobley as he meets with those on the front lines of this disease to discuss current and potential therapies, testing, clinical trials, neuropathology, public policy and so much more.

Online now:

1761Agenda: Alzheimer’s Disease Cure and Care
There are more than 5 million Americans living with Alzheimer’s disease. San Diego County Supervisor Dianne Jacob joins William Mobley, MD, PhD to discuss how we can better manage this disease from a public policy standpoint.


1761Stem Cells and Alzheimer’s Disease
Can stem cells be a weapon in the fight against Alzheimer’s disease? Larry Goldstein, PhD director the the UC San Diego Stem Cell Program, joins William Mobley, MD, PhD to discuss how stem cells work and what possibilities they may unlock.


1761The Anatomy of Memory
How do we create and store memories? Larry Squire PhD joins William Mobley MD, PhD to dissect these processes and how we might use this knowledge to aid in the fight against Alzheimer’s disease.


1761The Role of Synapses in Memory
Roberto Malinow, MD, PhD joins William Mobley MD, PhD to discuss his recent study where memories were not only erased but restored in rats. Learn how findings of this study could lead to breakthroughs in the treatment of Alzheimer’s disease.


Stay tuned to the Brain Channel for new installments in this informative series.

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Stories in the Ice

27845Much like the rings of a tree can tell us about its particular history, air bubbles trapped within large bodies of ice reveal secrets about our past climate and atmospheric composition.

Scientists can extract a wealth of information by drilling thousands of meters down into earth’s massive continental ice sheets and extracting ice cores. By examining the cores, they can go back in time to periods much colder and considerably warmer than today.

Jeff Severinghaus from Scripps Institution of Oceanography describes how he delves into earth’s climate past and what he’s learned. “Humans have changed the atmosphere due to burning fossil fuels and you see that very clearly in the ice core records,” he explains. While we may not see dramatic climate changes during our lifetimes, our grandchildren most certainly will.

Don’t miss this eye-opening look into our past — and our future.

Watch Stories in the Ice: What can past climate tell us about our future?

Browse more videos from Perspectives in Ocean Science.

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Telomeres: Tiny Keys to the Fountain of Youth?

telomeresOur time is limited. The clock is ticking. If we’re fortunate enough to escape disease, accidents, or war intact, then at some point our bodies eventually turn against us. What causes our bodies to age? Why don’t we simply live on (until that proverbial anvil lands atop our unsuspecting heads)?

Turns out, telomeres are one piece of the aging puzzle. They act like tiny timers – and once they run out, well, so do we. Chromosomes constantly replicate themselves through cell division, and telomeres are the protective end-parts of chromosomes. When chromosomes are copied, however, these telomeres shorten a little bit with each round of cell division.

The good news? This shortening is kept in check by the enzyme telomerase which elongates the telomeres. (Whew.)

The bad news? We have a limited supply of telomerase. (D’oh!)

What happens when our bodies cannot effectively elongate telomeres? The short answer is, we begin to age. People who cannot effectively elongate telomeres at a relatively youthful age may develop age-related diseases such as bone marrow failure, immune senescence and pulmonary fibrosis. This is known as Telomere Syndrome.

Carol Greider, 2009 Nobel Laureate and professor at Johns Hopkins University, discusses how this seemingly benign structure on the end of a chromosome – the telomere – can affect human disease and aging.

Watch this informative video to learn more: How can telomeres cause age-related disease?, part of the UC Berkeley Graduate Council Lecture series.

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UCTV’s Most Watched Programs of 2013

It’s been another fantastic year of enlightening content. Here’s a recap of UCTV’s most watched programs of 2013:

24549Brain Fitness: Social Aspects of Dementia and Mild Cognitive Impairment

Mario D. Garrett, PhD discusses the scientific revolution currently happening in dementia studies, dementia errors that impact research, and the importance of social interaction for patients with dementia.

25329 Concussions and Sports

 Clinical neuropsychologist Eric Freitag of Sport Concussion Program explains the risks and medical implications of concussions. Learn how to spot a concussion, when to see a doctor, and how treatment should progress.

24975 Is the Human Mind Unique?

Cognitive abilities often regarded as unique to humans include humor, morality, symbolism, creativity, and preoccupation with the minds of others. In these compelling talks, emphasis is placed on the functional uniqueness of these attributes, as opposed to the anatomical uniqueness.

25788 Brain Mapping:  Pushing the Frontiers of Neurology — Atlantic Meets the Pacific 2013

UC San Diego neuroscientists Ralph Greenspan and Nicholas Spitzer join Kris Famm of GlaxoSmithKline and James Fallows of The Atlantic for a look into the future of brain research. This program is part of The Atlantic Meets the Pacific 2013 series presented by The Atlantic and UCSD.

25193 Big Bang – UC Davis Business Plan Competition 2013

Big Bang! is the annual UC Davis Business Plan Competition, hosted by the UC Davis Child Family Institute for Innovation and Entrepreneurship and organized by MBA students of the Graduate School of Management. Find out the winners of this year’s competition.

25130 Immunology 101: The Basics and Introduction to our Patient

Katherine Gundling, MD, Associate Clinical Professor of Allergy and Immunology at UCSF, and Practice Chief of the Allergy/Immunology clinic at Moffitt Hospital examines the essential purpose of the immune system and how living with a primary disorder of immunity can affect daily life.

24925 The Age of Amazon with Marc Onetto

Marc Onetto, senior vice president of worldwide operations and customer service at Amazon.com, shares Amazon’s secrets to success. Hosted by the UC Davis Graduate School of Management’s Dean’s Distinguished Speaker Series.


25202The Future of Human Space Exploration

Charles Kennel, Former Scripps Institution of Oceanography director and chair of the National Academy’s Space Science Board, reviews what NASA’s space program has accomplished, what it is doing now, and what the future holds for human space exploration.

25319 Bike Fit: It’s All About the Bike

Curtis Cramblett, PT, CFMT, CSCS has been an avid cyclist and racer for more than 20 years and has spent thousands of hours on his bike. He shares his expertise on proper bike fit including what a good bike fit feels like, your biomechanical needs, and adjusting your bike to your body.

24900 Tracy DiNunzio, Co-Founder and CEO of Tradesy

Tracy DiNunzio, Founder and CEO of Tradesy a fashion resale website, talks about what it took to get her company off the ground. She is also the CEO and founder of Recycled Bride, the Web’s largest wedding resale marketplace, which launched in 2009.

24972 An Evening of Sacred Music and Dances from Japan Kagura Ensemble of Chichibu Shrine

Enjoy this unique opportunity to experience Kagura (sacred music and ritual dances) from Chichibu, in the first and only US performance of the shrine’s Kagura troupe. Chichibu Kagura, dating back to approximately the seventeenth century, with a repertory based on ancient myths, has been designated by the government as an Important Formless Folkloric Cultural Property.

24923 Is Beer In Your Career?

What opportunities are in the burgeoning craft brewing industry? In this Career Channel presentation, you’ll learn the answers from a panel of experts that includes Stone Brewing founder Greg Koch, Lost Abbey brewer Tomme Arthur, Ballast Point brewer and co-founder Yuseff Cherney, and the founder of White Labs Inc. Pure Yeast and Fermentation, Chris White.

25125 HIV: A Primer

Dr. Jay Levyan, an AIDS and cancer researcher at UCSF, discusses the discovery of HIV and its basic science. Then, Dr. C. Bradley Hare, Associate Professor of Clinical Medicine and Medical Director, UCSF HIV/AIDS Division at San Francisco General Hospital, explores HIV and its diseases through case presentations from the clinic.

25071 Intellectual Journey with Gary Becker  – Conversations with History

Harry Kreisler welcomes Nobel Laureate Gary S. Becker for a discussion of his intellectual journey. Topics include: Milton Friedman, his early work on discrimination, the skills and temperament required for work in economics, applying economic analysis to social problems, the Chicago school of economics, creativity, rational choice theory, markets vs. government, the impact of ideas on policy, the communications revolution, and the lessons of the 2008 economic collapse.

24920 Farming in the 21st Century: A Woman’s Perspective from South Africa

Brylyne Chitsunge is an internationally acclaimed expert and facilitator of the Nigeria-South Africa Group on Agriculture and a tireless advocate for farmers in her native South Africa. Chitsunge counts herself among the 70 percent of farmers who are women in South Africa. Despite the challenges,  she was able to buy her own land and works as a farmer and breeder of Kalahari Red goats, Nguni cattle, free range poultry, indigenous pigs and most recently Tilapia fish.

25297 UCSB 2013 Summit on Energy Efficiency – Steven Chu

Opening Keynote by Steven Chu, Secretary of Energy ’09-’13 and Professor at Stanford University, titled Materials Science Innovations in Energy Efficiency and Generation. Conference hosted in May, 2013 by the UCSB Institute for Energy Efficiency. 

25641Fat Chance: Fructose 2.0

Dr. Robert Lustig, UCSF Division of Pediatric Endocrinology, updates his very popular video Sugar: The Bitter Truth. He argues that sugar and processed foods are driving the obesity epidemic, which in turn affects our endocrine system. In UCTV’s documentary, The Skinny on Obesity, Dr. Lustig and his colleagues discuss the root causes of the obesity epidemic.

Thanks for watching! Join the conversation on FaceBook and Twitter. 

 

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